用bing查了一下:bandwidth of sub carrier A: No bandwidth The subcarrier is a single frequency with no bandwidth. The bandwidth is determined by the modulation frequency and the type of modulation. Thus, for example, with simple AM modulation by a 1kHz sinewave, the bandwidth of the subcarrier would be 2kHz around the subcarrier frequency. https://forum.allaboutcircuits.com/threads/radio-frequency-subcarrier-and-its-relation-bandwidth.176891/----------------------------------------------
A: No bandwidth The subcarrier is a single frequency with no bandwidth. The bandwidth is determined by the modulation frequency and the type of modulation. Thus, for example, with simple AM modulation by a 1kHz sinewave, the bandwidth of the subcarrier would be 2kHz around the subcarrier frequency. https://forum.allaboutcircuits.com/threads/radio-frequency-subcarrier-and-its-relation-bandwidth.176891/
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